Home / 8,271.81-11,416.50-7,998.45

Finding the Fourth Proportional to 8,271.81, 11,416.50 and 7,998.45

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Solution

The fourth proportional to 8,271.81, 11,416.50 and 7,998.45 is: 11,039.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,271.81 : 11,416.50 = 7,998.45 : x
  2. Step 2: Convert to fraction form
    8,271.81/11,416.50 = 7,998.45/x
  3. Step 3: Cross multiply
    8,271.81x = 11,416.50 × 7,998.45
  4. Step 4: Simplify right side
    8,271.81x = 91,314,304.43
  5. Step 5: Solve for x
    x = 91,314,304.43/8,271.81
  6. Step 6: Final answer
    x = 11,039.22

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.